Finding the Fourth Proportional to 12,396.83, 17,111.48 and 8,369.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,396.83 : 17,111.48 = 8,369.51 : x
2. Step 2: Convert to fraction form
   12,396.83/17,111.48 = 8,369.51/x
3. Step 3: Cross multiply
   12,396.83x = 17,111.48 × 8,369.51
4. Step 4: Simplify right side
   12,396.83x = 143,214,575.57
5. Step 5: Solve for x
   x = 143,214,575.57/12,396.83
6. Step 6: Final answer
   x = 11,552.52